In 18 days · Sat, Aug 15, 2026
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Saturday, August 15th, 2026
Blish Park, Marlborough CT
1 Mile
65–82°F · some rain risk
See last 10 years
On this date: rain 3 of the last 10 years
2025
67–86°F
dry
2024
60–84°F
rain
2023
65–72°F
rain
2022
59–85°F
dry
2021
62–81°F
dry
2020
64–80°F
dry
2019
64–83°F
dry
2018
66–84°F
dry
2017
66–74°F
rain
2016
72–88°F
dry
Best months to race in Connecticut →
About this race
Lake Terramuggus Olympic Distance Triathlon
August 15, 2026
8:00am
Join us for the Lake Terramuggus Olympic Distance Triathlon! This is the perfect way to celebrate a summer of training and racing at the Lake Terramuggus Sprint Series - with limited adaptation to our sprint course this Olympic race will be familiar to those participating in the sprint series throughout the summer. Even if it is your first time to Lake T this race is fun and fast, moderate hills on the bike and run. A great race for your first Olympic Distance Tri!
Race Details
- Distance: 1600 yard swim, 25 mile bike, 10K run.
- Mission: To encourage participation from all levels of triathletes, provide a great training opportunity, and foster a community of athletes.
- Cut-off Time: Must be OFF the bike course within 2 hrs and 45 minutes of the start of the second wave.
- Note: If the course isn't completed in the allotted time, you can still run 1 loop but will not be eligible for awards.
Race Schedule
- 6:30 am: Race Day Check-In Opens
- 8:00 am: Wave 1 Starts (Men & Relay)
- 8:02 am: Wave 2 Starts (Females)
Race Location
Lake Terramuggus, Blish Park
Marlborough, CT
Registration Details
- Early Bird Pricing: Thru 3/31/25 - $20 off pricing below.
- Prior to Race Day: Individual: $115, Relay: $135, Aqua/Bike: $105
- Race Day Registration: Individual: $130, Relay: $150, Aqua/Bike: $120
- T-shirts: Available for pre-registered until August 1st.
Race Awards
- Top 3 Overall: Male/Female
- Top Age Group: 19 & U, 20 - 29, 30 -39, 40 - 49, 50 -59, 60+
- Top Relay: Awards for relay teams
- Aqua/Bike: Top Male and Female
Important Notes
- Earbuds: No earbuds are allowed at any point of the race.
- Helmets: Must be on and strapped before leaving transition.
- Mounting: Bikers cannot mount their bike until reaching Lake Rd.
- Riding: Must maintain at least 2 bike lengths behind the racer in front, and ride as far right as possible.
No animals are allowed at Blish Park per the Town of Marlborough. In case the weather gods don’t cooperate, all efforts will be made to race in some capacity. If we are unable to race, there will be no refunds or transfers. Thank you.
For more information, visit the race page.
Course map
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